Task create new version tag

[ladar]

As mentioned elsewhere, there isn't a single tag/release or release since 2011. That makes it hard to know whether the current commit is at all stable and/or tested. To fix this someone with commit access needs to run:

git tag 1.5
git push --tags

Assuming version 1.5 is correct, which is what is currently in the .desktop file. That will create a tarball on GitHub for the repo, assuming what's currently committed is ready for release.

As a follow up task... navigate to the GitHub tags page, and create a "release" based on the tag. During the "release" process, you can attach RPM and DEB files... which will make installation much easier.

[ladar]

@michaelhatPIengineering hopefully you can handle this... (and don't forget to review the pending merges before creating the tag/release).